[Spice-devel] [PATCH 05/11] worker: move compression parameters to dcc
Pavel Grunt
pgrunt at redhat.com
Wed Nov 11 06:10:05 PST 2015
Hi Fabiano,
On Wed, 2015-11-11 at 14:45 +0100, Fabiano Fidêncio wrote:
> On Wed, Nov 11, 2015 at 1:20 PM, Frediano Ziglio <fziglio at redhat.com> wrote:
> > From: Marc-André Lureau <marcandre.lureau at gmail.com>
> >
> > ---
> > server/display-channel.c | 9 ++++++++-
> > server/display-channel.h | 8 +++++++-
> > server/red_worker.c | 31 +++++++++++++++----------------
> > 3 files changed, 30 insertions(+), 18 deletions(-)
> >
> > diff --git a/server/display-channel.c b/server/display-channel.c
> > index 5f422c9..163f6b7 100644
> > --- a/server/display-channel.c
> > +++ b/server/display-channel.c
> > @@ -124,7 +124,11 @@ DisplayChannelClient *dcc_new(DisplayChannel *display,
> > RedClient *client, RedsStream *stream,
> > int mig_target,
> > uint32_t *common_caps, int num_common_caps,
> > - uint32_t *caps, int num_caps)
> > + uint32_t *caps, int num_caps,
> > + SpiceImageCompression image_compression,
> > + spice_wan_compression_t jpeg_state,
> > + spice_wan_compression_t zlib_glz_state)
> > +
> > {
> > DisplayChannelClient *dcc;
> >
> > @@ -137,6 +141,9 @@ DisplayChannelClient *dcc_new(DisplayChannel *display,
> >
> > ring_init(&dcc->palette_cache_lru);
> > dcc->palette_cache_available = CLIENT_PALETTE_CACHE_SIZE;
> > + dcc->image_compression = image_compression;
> > + dcc->jpeg_state = jpeg_state;
> > + dcc->zlib_glz_state = zlib_glz_state;
> >
> > return dcc;
> > }
> > diff --git a/server/display-channel.h b/server/display-channel.h
> > index 334dbf7..3db6eef 100644
> > --- a/server/display-channel.h
> > +++ b/server/display-channel.h
> > @@ -161,6 +161,9 @@ struct Drawable {
> >
> > struct DisplayChannelClient {
> > CommonChannelClient common;
> > + SpiceImageCompression image_compression;
> > + spice_wan_compression_t jpeg_state;
> > + spice_wan_compression_t zlib_glz_state;
> >
> > int expect_init;
> >
> > @@ -233,7 +236,10 @@
> > DisplayChannelClient* dcc_new (Displa
> > yCha
> > uint3
> > 2_t *common_caps,
> > int
> > num_common_caps,
> > uint3
> > 2_t *caps,
> > - int
> > num_caps);
> > + int
> > num_caps,
> > + Spice
> > ImageCompression image_compression,
> > + spice
> > _wan_compression_t jpeg_state,
> > + spice
> > _wan_compression_t zlib_glz_state);
> > void dcc_push_monitors_config (Displ
> > ayChannelClient *dcc);
> > void dcc_push_destroy_surface (Displ
> > ayChannelClient *dcc,
> > uint3
> > 2_t surface_id);
> > diff --git a/server/red_worker.c b/server/red_worker.c
> > index 3908f97..5cdb348 100644
> > --- a/server/red_worker.c
> > +++ b/server/red_worker.c
> > @@ -4623,8 +4623,7 @@ static inline int
> > red_compress_image(DisplayChannelClient *dcc,
> > compress_send_data_t* o_comp_data)
> > {
> > DisplayChannel *display_channel = DCC_TO_DC(dcc);
> > - SpiceImageCompression image_compression =
> > - display_channel->common.worker->image_compression;
> > + SpiceImageCompression image_compression = dcc->image_compression;
> > int quic_compress = FALSE;
> >
> > if ((image_compression == SPICE_IMAGE_COMPRESSION_OFF) ||
> > @@ -5028,15 +5027,14 @@ static void fill_mask(RedChannelClient *rcc,
> > SpiceMarshaller *m,
> > SpiceImage *mask_bitmap, Drawable *drawable)
> > {
> > DisplayChannelClient *dcc = RCC_TO_DCC(rcc);
> > - DisplayChannel *display = DCC_TO_DC(dcc);
> >
> > if (mask_bitmap && m) {
> > - if (display->common.worker->image_compression !=
> > SPICE_IMAGE_COMPRESSION_OFF) {
> > - SpiceImageCompression save_img_comp =
> > - display->common.worker->image_compression;
> > - display->common.worker->image_compression =
> > SPICE_IMAGE_COMPRESSION_OFF;
> > + if (dcc->image_compression != SPICE_IMAGE_COMPRESSION_OFF) {
> > + /* todo: pass compression argument */
> > + SpiceImageCompression save_img_comp = dcc->image_compression;
> > + dcc->image_compression = SPICE_IMAGE_COMPRESSION_OFF;
> > fill_bits(dcc, m, mask_bitmap, drawable, FALSE);
> > - display->common.worker->image_compression = save_img_comp;
> > + dcc->image_compression = save_img_comp;
> > } else {
> > fill_bits(dcc, m, mask_bitmap, drawable, FALSE);
> > }
> > @@ -6923,7 +6921,7 @@ static void red_marshall_image(RedChannelClient *rcc,
> > SpiceMarshaller *m, ImageI
> >
> > compress_send_data_t comp_send_data = {0};
> >
> > - comp_mode = display_channel->common.worker->image_compression;
> > + comp_mode = dcc->image_compression;
> >
> > if (((comp_mode == SPICE_IMAGE_COMPRESSION_AUTO_LZ) ||
> > (comp_mode == SPICE_IMAGE_COMPRESSION_AUTO_GLZ)) &&
> > !bitmap_has_extra_stride(&bitmap)) {
> > @@ -8022,10 +8020,10 @@ static int
> > display_channel_handle_migrate_data(RedChannelClient *rcc, uint32_t s
> >
> > if (migrate_data->low_bandwidth_setting) {
> > red_channel_client_ack_set_client_window(rcc,
> > WIDE_CLIENT_ACK_WINDOW);
> > - if (DCC_TO_WORKER(dcc)->jpeg_state == SPICE_WAN_COMPRESSION_AUTO) {
> > + if (dcc->jpeg_state == SPICE_WAN_COMPRESSION_AUTO) {
> > display_channel->enable_jpeg = TRUE;
> > }
> > - if (DCC_TO_WORKER(dcc)->zlib_glz_state ==
> > SPICE_WAN_COMPRESSION_AUTO) {
> > + if (dcc->zlib_glz_state == SPICE_WAN_COMPRESSION_AUTO) {
> > display_channel->enable_zlib_glz_wrap = TRUE;
> > }
> > }
> > @@ -8558,7 +8556,8 @@ static void handle_new_display_channel(RedWorker
> > *worker, RedClient *client, Red
> > display_channel = worker->display_channel;
> > spice_info("add display channel client");
> > dcc = dcc_new(display_channel, client, stream, migrate,
> > - common_caps, num_common_caps, caps, num_caps);
> > + common_caps, num_common_caps, caps, num_caps,
> > + worker->image_compression, worker->jpeg_state, worker-
> > >zlib_glz_state);
> > if (!dcc) {
> > return;
> > }
> > @@ -8573,19 +8572,19 @@ static void handle_new_display_channel(RedWorker
> > *worker, RedClient *client, Red
> > DISPLAY_FREE_LIST_DEFAULT_SIZE *
> > sizeof(SpiceResourceID));
> > dcc->send_data.free_list.res_size = DISPLAY_FREE_LIST_DEFAULT_SIZE;
> >
> > - if (worker->jpeg_state == SPICE_WAN_COMPRESSION_AUTO) {
> > + if (dcc->jpeg_state == SPICE_WAN_COMPRESSION_AUTO) {
> > display_channel->enable_jpeg = dcc->common.is_low_bandwidth;
> > } else {
> > - display_channel->enable_jpeg = (worker->jpeg_state ==
> > SPICE_WAN_COMPRESSION_ALWAYS);
> > + display_channel->enable_jpeg = (dcc->jpeg_state ==
> > SPICE_WAN_COMPRESSION_ALWAYS);
> > }
> >
> > // todo: tune quality according to bandwidth
> > display_channel->jpeg_quality = 85;
> >
> > - if (worker->zlib_glz_state == SPICE_WAN_COMPRESSION_AUTO) {
> > + if (dcc->zlib_glz_state == SPICE_WAN_COMPRESSION_AUTO) {
> > display_channel->enable_zlib_glz_wrap = dcc-
> > >common.is_low_bandwidth;
> > } else {
> > - display_channel->enable_zlib_glz_wrap = (worker->zlib_glz_state ==
> > + display_channel->enable_zlib_glz_wrap = (dcc->zlib_glz_state ==
> > SPICE_WAN_COMPRESSION_ALWA
> > YS);
> > }
> >
> > --
> > 2.4.3
> >
> > _______________________________________________
> > Spice-devel mailing list
> > Spice-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/spice-devel
>
> In the first time this patch was sent, Pavel pointed out:
> "Hi,
> it is keeping the compression parameters in the RedWorker structure.
> I think they should be removed from the structure and only used from dcc."
>
> I'm not sure if it's possible. RedWorker keeps these info and use them
> when creating a new DCC.
>
Since this patch. Before all the compression stuffs were handled by RedWorker,
right?
> One thing that I am not exactly sure is whether we want to keep the
> RedWorker and DCC values in sync as we have to keep both.If that's the
> case, the patch is just going to make things worse :-\
>
> Also, and about this small patch ... shall it be squashed? If not, why?
According to the previous discussion [1], it is change of behavior. Instead of
changing it for the future dcc, you are changing it only for the actual one.
Personally I think your patch is correct.
I don't think we should change it for the new dcc. I think the new should be
created with the default compression settings (which comes from qemu and they
are stored in global variables).
Consider:
1. A starts server with image compression = xxx
2. B connects to the server and changes compression (using the preferred
compression message) to yyy
3. A connects expecting compression xxx, but it will receive yyy
Pavel
[1] http://lists.freedesktop.org/archives/spice-devel/2015-November/023407.html
>
> diff --git a/server/red_worker.c b/server/red_worker.c
> index 5cdb348..5e2bcd6 100644
> --- a/server/red_worker.c
> +++ b/server/red_worker.c
> @@ -8091,6 +8091,7 @@ static int
> display_channel_handle_preferred_compression(DisplayChannelClient *dc
> case SPICE_IMAGE_COMPRESSION_GLZ:
> case SPICE_IMAGE_COMPRESSION_OFF:
> - display_channel->common.worker->image_compression =
> pc->image_compression;
> + dcc->image_compression = pc->image_compression;
> return TRUE;
> default:
> spice_warning("preferred-compression: unsupported image
> compression setting");
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